Starting out
Starting out
Hello,
I am building up a portsdown system.
I have the LimeSDR, Raspberry Pi, software (configured I hope) and I have a LCD screen.
When I plug it all in The backlight on the screen lights up but nothing appears on the screen??
I do not have the GPIO extender. Is this important or can the screen operate without it.
I only intend to use 1200 MHz so dont have all the other hardware for a multi frequency system.
No video source as yet.. Again, does it require a video source in order to come to life?
Thanks for looking in
Mark
I am building up a portsdown system.
I have the LimeSDR, Raspberry Pi, software (configured I hope) and I have a LCD screen.
When I plug it all in The backlight on the screen lights up but nothing appears on the screen??
I do not have the GPIO extender. Is this important or can the screen operate without it.
I only intend to use 1200 MHz so dont have all the other hardware for a multi frequency system.
No video source as yet.. Again, does it require a video source in order to come to life?
Thanks for looking in
Mark
Re: Starting out
Hi Mark
Some questions to help me to help you:
If a 3.5 inch screen, please could you provide a photo of the reverse (PCB) side of your screen so that I can check the version.
Dave
Some questions to help me to help you:
- What version of Portsdown Software? Portsdown 2020 or Portsdown 4?
- What version of Raspberry Pi?
- What LCD Screen?
- Did you see any errors when you built the card, or did it get to the end and reboot without complaining?
If a 3.5 inch screen, please could you provide a photo of the reverse (PCB) side of your screen so that I can check the version.
Dave
Re: Starting out
Hi Dave,
I have a Raspberry Pi 3
The version I have I believe is 2020 and I dont recall any errors as I did the install.
See attached pic of display.
Regards
Mark
I have a Raspberry Pi 3
The version I have I believe is 2020 and I dont recall any errors as I did the install.
See attached pic of display.
Regards
Mark
Re: Starting out
Hi Mark
Your problem is that you do not have a genuine Waveshare Type A Display. It is a some sort of (poor) copy. Same problem as PA3FBX here: viewtopic.php?f=103&t=6976
The genuine display is marked like this: https://www.waveshare.com/product/displ ... -lcd-a.htm
You could go into the c code (rpidatv/src/rpidatvtouch.c) and try to modify it to work and then recompile, but I would suggest that it is not worth the effort.
We had lots of similar problems when we started the project 3 years ago. If you have room, I would suggest that you replace it with the Raspberry Pi Foundation 7 inch display https://www.raspberrypi.org/products/ra ... h-display/ then you can use it to watch smooth video from the streamer or (with a MiniTiouner) as a DATV receiver.
Dave, G8GKQ
Your problem is that you do not have a genuine Waveshare Type A Display. It is a some sort of (poor) copy. Same problem as PA3FBX here: viewtopic.php?f=103&t=6976
The genuine display is marked like this: https://www.waveshare.com/product/displ ... -lcd-a.htm
You could go into the c code (rpidatv/src/rpidatvtouch.c) and try to modify it to work and then recompile, but I would suggest that it is not worth the effort.
We had lots of similar problems when we started the project 3 years ago. If you have room, I would suggest that you replace it with the Raspberry Pi Foundation 7 inch display https://www.raspberrypi.org/products/ra ... h-display/ then you can use it to watch smooth video from the streamer or (with a MiniTiouner) as a DATV receiver.
Dave, G8GKQ
Re: Starting out
Thanks Dave, typical Chinese rip off.
I'll take a look at the links you suggested.
Mark
I'll take a look at the links you suggested.
Mark
Re: Starting out
Hi Dave, I ordered the screen you suggested and it arrived today. Still nothing on the screen when it boots.
So I re-flashed a SD card and went through the installation procedure again.
Got to this point after installation.........
Regards
Mark
-------------------------------------------------------------------------------------------------------------------------------------------------
login as: pi
pi@10.1.1.222's password:
Linux raspberrypi 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Mon Nov 16 07:00:30 2020
SSH is enabled and the default password for the 'pi' user has not been changed.
This is a security risk - please login as the 'pi' user and type 'passwd' to set a new password.
-bash: /home/pi/rpidatv/bin/rpidatvgui: No such file or directory
pi@raspberrypi:~ $ pwd
/home/pi
[1]+ Done ( sleep 1; sudo killall -9 fbi > /dev/null 2> /dev/null )
------------------------------------------------------------------------------------------------------------------------------------------------------
So I re-flashed a SD card and went through the installation procedure again.
Got to this point after installation.........
Regards
Mark
-------------------------------------------------------------------------------------------------------------------------------------------------
login as: pi
pi@10.1.1.222's password:
Linux raspberrypi 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Mon Nov 16 07:00:30 2020
SSH is enabled and the default password for the 'pi' user has not been changed.
This is a security risk - please login as the 'pi' user and type 'passwd' to set a new password.
-bash: /home/pi/rpidatv/bin/rpidatvgui: No such file or directory
pi@raspberrypi:~ $ pwd
/home/pi
[1]+ Done ( sleep 1; sudo killall -9 fbi > /dev/null 2> /dev/null )
------------------------------------------------------------------------------------------------------------------------------------------------------
Re: Starting out
Hi Mark
From the diagnostics in your post, that is a new problem. Nothing to do with the screen - it looks like a failed installation on the card.
The file /home/pi/rpidatv/bin/rpidatvgui is compiled during the installation process, so something seems to have gone wrong there. I would suggest rebuilding the card again.
Dave
From the diagnostics in your post, that is a new problem. Nothing to do with the screen - it looks like a failed installation on the card.
The file /home/pi/rpidatv/bin/rpidatvgui is compiled during the installation process, so something seems to have gone wrong there. I would suggest rebuilding the card again.
Dave
Re: Starting out
no problem. will do and see how I go.
Also noted that SSH didn't enable automatically. I had to log on locally and enable it for the remote access.
Mark
Also noted that SSH didn't enable automatically. I had to log on locally and enable it for the remote access.
Mark
Re: Starting out
Hi Mark
The ssh issue will be something to do with the empty ssh file that you needed to put on the /boot folder. Wrong filename? Hidden .txt extension?
You should not have a display and keyboard connected during the Portsdown build - only a network connection and optionally a touchscreen.
Dave
The ssh issue will be something to do with the empty ssh file that you needed to put on the /boot folder. Wrong filename? Hidden .txt extension?
You should not have a display and keyboard connected during the Portsdown build - only a network connection and optionally a touchscreen.
Dave
Re: Starting out
yea read that. I enabled ssh prior to portsdown install.sh running, then disconnected keyboard and monitor